I write several blog posts every week, most for Enigin and the energy saving business.
Most of the time I have no trouble coming up with a topic. After all, I read so much that something usually grabs my attention. Some days though I am desperately looking for a topic to blog about. Sometimes, I have to walk away from the computer and do something else until an idea pops into my head.
Often the Internet is the solution, so if you are running a blog here are some of the places you can go to get inspiration for your posts. Here are some good suggestions from Bas van den Beld.